Dust-arrester



- (No Mdell) H. W. PETERSEN. DUST ARRESTER.

.No. 463.689. Patented Nov. 24,1891.

UNITED STATES PATENT OFF CEa HENRY WV. PETERSEN, OF APPLETON, YVISCONSIN.

DUST-ARRESTER.

SPECIFICATION forming part of Letters Patent No. 463,689, dated November 24, 1891.

Application filed April 30, 1891. Serial No. 391,069. (No model.)

TO'CLZZ whom it may concern.-

Be it known that I, HENRY \V. PETERSEN, a citizen of the United States, residing at Appleton, in the county of Outagamie and State of \Visconsin, have invented certain new and useful Improvements in Dust-Arresters; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to makeand use the same.

My invention has relation to improvements in dust-arresters, such as employed in sawmills, planing-mills, and other Wood-working establishments, for separating chips, dust, and other refuse from the draft or blast of air employed to blow the refuse from the mill to a boiler-house orother point of discharge; and the novelty will be fully understood from the following description and claim, when taken in connection with the accompanying drawings, in which Figure 1 is a diagrammatic view illustrating the position of my improved device with respect to the tubes or conveyers leading to the casing of the blast-fan, and the conveyer leading from said casing and discharging into my improved device. Fig. 2 is avertical diametrical section of my improved dust-arrester, illustrating its position with respect to the roof of a boiler-house or other point of discharge. Fig. 3 is a transverse section taken in the plane indicated by the line y g on Fig. 2. Fig. 4 is a detail vertical section taken in the plane indicated by the line a; so on Fig. 2; and Fig. 5 is a transverse section of the arrester, illustrating the conveyerreceiving sleeve as extending radiallyfrom the periphery thereof.

In the said drawings similar letters designate corresponding parts throughout the several views, referring to which A indicates the mill, and B the boiler-house, of a wood-working establishment. Leading from a point adjacent the saw and planingmachines are branch conveyer-s G, which discharge into a conveyer D, which leads to a fan-casing E, in which is mounted a blast-fan of suitable construction. Leading from the fan-casing E is a conveyer F, which discharges into my improved dust-arrester, which I will now proceed to describe.

G indicates the cylindrical casing of my improved arrester, which is provided at its lower end withadepending funnel portion Ct, which, when the arrester is mounted, is designed to take through the roof of a boiler-house or other place for the discharge of the chips and refuse. At its upper end the casing G is pro vided with an annular opening for the discharge of the air blast or draft created by the fan, and this opening is surrounded bya collar b, which extends below and above the top, and is designed to receive an uptake or pipe at its upper end for carrying off the blast or draft of air. Leading to the casing G, about midway the length thereof and preferably off the center, is a sleeve H, which is designed to receive or be received by the conveyer F, leading from the blast-fan casing.

Suitably attached to the inside of the easing G,adjacentto the inner side of the sleeve H, is the vertically-disposed curved wall of the deflector I, which is also provided with a top wall or plate I as better shown in Fig. 4 of the drawings, but is open at its bottom to prevent chips and other refuse from clogging, and to allow the same to fall; and by the situation of the deflector below the top of the casing it will be readily perceived that the dust, chips, 850., will be discharged into the middle of the casing, when the dust, by reason of its lightness, takes up above the deflector and out of the draft, and thence up through the opening at the top of the casing.

In operation it will be seen that as soon as the chips, dust, and draft or blast of air reaches the deflector I they are Whirled around therein, when the chips, dust, and other refuse, by reason of their weight, gradually fall into and through the funnel, while the wind takes up through the opening at the top of the casing.

In Fig. 5 of the drawings I illustrate the sleeve H as taking radially from the periphery of the casing; but in practice I prefer to place the sleeve as illustrated in Fig. 3.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

In a dust-arrester, the combination, with a cylindrical casing open at its upper and lower ends and provided in its vertical wall intermediate the length thereof with an inductionopening, an annular collar surrounding the opening at the top of the casing and extendand chips from said opening, substantially as 10 ing above and below the top, and a funnel despecified. pending from the lower end of the casing, of In testimony whereof I aflix mysignature in a tubular sleeve leading to the inductionpresence of two Witnesses. 5 opening in the periphery of the casing, and

, T r 7 r i a deflector comprising a, vertically disposed RX PE curved wall, and a fiat top so arranged within Witnesses: the casing with respect to the induction-open- SAM RYAN,

ing in the Wall thereof as to receive the dust H. J. MULHOLLAND. 

